Can a Lisp macro automatically search for, and find, the API documentation and apply it to the output? I've implemented connections to (public) APIs of differe

Can a Lisp macro automatically search for, and find, the API documentation and apply it to the output? I've implemented connections to (public) APIs of different services multiple times using LLMs without even looking up the APIs myself. I just say "Enrich the data about this game from Steam's API" and that's about it.